In industrial heat exchange equipment, spiral finned tubes, with their unique fin structure, greatly increase the heat exchange area, thereby achieving efficient heat transfer and temperature control in various industrial scenarios. The following are detailed analyses of several typical application cases:

1. Spiral Finned Tubes – Heating in a Heavy Machinery Plant

A large assembly workshop (80m long, 40m wide, 12m high) in a heavy machinery plant previously suffered from uneven heating due to its large size and rising hot air. The average winter temperature was only 12℃, with some corners below 8℃.

After renovation, SRZ-type steel spiral finned tube radiators were used, employing a “layered installation + sidewall arrangement” scheme (two rows of radiators were installed at heights of 3m and 8m respectively, totaling 60 sets), coupled with a 0.6MPa saturated steam heat source. 1. After the renovation, the average workshop temperature stabilized at 18℃, and energy consumption decreased by 27.5%.

2. Spiral Finned Tubes – Corrosion-Resistant Heating for Underground Garages in Commercial Complexes

The underground garage of a commercial complex in a certain city (area of ​​12,000㎡) suffered severe corrosion of cast iron radiators due to the humid environment (relative humidity 75%-85%). GLⅡ type steel spiral finned tube radiators were adopted, with galvanized or electrostatic powder coating surface treatment to enhance corrosion resistance, and a 10mm fin spacing was designed to reduce dust accumulation. After the renovation, maintenance costs were significantly reduced, and equipment lifespan was extended.

3. Spiral Finned Tubes – Waste Heat Recovery from Boilers in Thermal Power Plants

In coal-fired power plants, spiral finned tube heat exchangers are installed in the boiler tail flue, utilizing the waste heat of 300-400℃ flue gas to heat cold air. After installation on a 300MW unit, the boiler thermal efficiency increased by 2.3%, saving over 2000 tons of standard coal annually, while the flue gas temperature dropped from 180℃ to below 90℃, reducing thermal pollution.

4. Spiral Finned Tubes – Low-Temperature Drying in Jujube Drying Rooms

Jujube processing enterprises use galvanized spiral finned tube heat exchangers (heat source: natural gas hot water). Through a layered drying room and an automatic temperature and humidity control system, the temperature fluctuation in the drying room is controlled within ±1℃. Energy consumption costs per ton of jujubes are reduced by 40%, and the yield rate increases from 75% to 92%.

5. Spiral Finned Tubes – High-Temperature and High-Efficiency Drying in Wood Drying Rooms

Wood processing plants use copper-aluminum composite finned tube heat exchangers (heat source: steam). Employing a “U-shaped surround” layout and a segmented temperature control system, the drying cycle is shortened from 15 days to 10 days, and the cracking rate of boards is reduced from 18% to below 5%.

6. Spiral Finned Tubes – Process Temperature Control in the Petrochemical Industry

In oil refinery distillation tower systems, corrugated finned tube radiators, as core components of the reboiler, heat the bottom liquid with steam. Their heat exchange efficiency is 40% higher than traditional bare tubes. They are resistant to high temperatures (300-400℃) and high-viscosity media erosion, with a service life of 8-10 years.

7. Spiral Finned Tubes – High-Cost-Effective Applications in Central Heating Projects

In industrial park central heating projects, carbon steel spiral finned tube heat exchangers are selected, reducing equipment costs by 40%-60% compared to stainless steel solutions.

These case studies demonstrate the core role of spiral finned tubes in solving industrial challenges such as high-ceiling heating, corrosion in humid environments, waste heat recovery, and precision drying. Through optimized fin design, material selection, and system layout, they significantly improve energy efficiency and equipment reliability.